Prostate cancer is the most common cancer among men in the UK. Understanding use of different prostate cancer treatments can help improve care for patients, make better use of NHS resources, and highlight any gaps or inconsistencies in treatment.

Clinicians may choose different treatments due to a variety of reasons, such as personal experience, patient preferences, or how they interpret medical guidelines. These differences can lead to inconsistent treatment across the country. There is a lack of evidence on about how much variation there is in prescribing these hormone therapies.

The study seeks to identifying where and why these differences occur in order to work towards making sure all patients get the best possible care. The study will start by looking at how hormone treatments (especially a type called androgen deprivation therapy (ADT)) are prescribed in different parts of England, based on NHS Trust areas.